S3645 Insurance Policy Changes

HCPCS S3645 is officially defined as "Hiv-1 antibody testing of oral mucosal transudate." HCPCS S3645 is referenced in 3 tracked payer policy changes from Harvard Pilgrim Health Care, Blue Cross NC, and 1 other payer. For billers and coders, staying current on payer-specific coverage criteria, reimbursement rules, and prior-authorization requirements for HCPCS S3645 is critical to clean claim submission. Each entry below links to the full policy analysis with effective dates and action steps.